4447201620 has 48 divisors (see below), whose sum is σ = 12881554560. Its totient is φ = 1145026176.

The previous prime is 4447201613. The next prime is 4447201651. The reversal of 4447201620 is 261027444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276192 + ... + 1279671.

It is an arithmetic number, because the mean of its divisors is an integer number (268365720).

Almost surely, 2^4447201620 is an apocalyptic number.

It is an amenable number.

4447201620 is an abundant number, since it is smaller than the sum of its proper divisors (8434352940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4447201620 is a wasteful number, since it uses less digits than its factorization.

4447201620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555904 (or 2555902 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 4447201620 is about 66687.3422772268. The cubic root of 4447201620 is about 1644.4813015878.

The spelling of 4447201620 in words is "four billion, four hundred forty-seven million, two hundred one thousand, six hundred twenty".